A method for evening out the feeding of reaction gas when feeding reaction gas into a suspension smelting furnace and a burner

Abstract

A method for evening out the feeding of reaction gas when feeding solid material and reaction gas into a reaction shaft of a suspension smelting furnace by means of a burner. The method includes feeding solid material into the reaction shaft by means of a feeder pipe of the burner, and feeding reaction gas into the reaction shaft by means of a gas supply device of the burner. The method includes providing a gas deflection member in a reaction gas chamber of the burner. Presented is also a burner.

1 .- 42 . (canceled) 
     
     
         43 . A method for evening out the feeding of reaction gas when feeding solid material and reaction gas into a reaction shaft of a suspension smelting furnace by means of a burner, the method comprising:
 feeding solid material into the reaction shaft of the suspension smelting furnace by means of a feeder pipe of the burner, and   feeding reaction gas into the reaction shaft of the suspension smelting furnace by means of a gas supply device of the burner, wherein the gas supply device comprises a reaction gas chamber, which surrounds the feeder pipe, wherein the gas supply device opens to the reaction shaft of the suspension smelting furnace through an annular opening, wherein the reaction gas chamber being at least partly laterally outwardly limited by an inner wall section tapering towards the annular opening, and by a top structure,   feeding reaction gas into the reaction gas chamber through a feed opening of at least one inlet channel of the gas supply device,   providing a gas deflection member in the reaction gas chamber, wherein the gas deflection member limiting at least one through opening leading through the gas deflection member, and   directing reaction gas from said feed opening of said at least one inlet channel of the gas supply device towards the inner wall section tapering towards the annular opening and/or towards the gas deflection member.   
     
     
         44 . The method according to  claim 43 , wherein the method further comprises:
 arranging said at least one inlet channel of the gas supply device to penetrate into the reaction gas chamber so that said at least one inlet channel having a channel section inside the reaction gas chamber and so that said feed opening of said at least one inlet channel is inside the reaction gas chamber.   
     
     
         45 . The method according to  claim 44 , wherein the method further comprises:
 arranging said at least one inlet channel of the gas supply device to pass through the top structure of the reaction gas chamber.   
     
     
         46 . The method according to  claim 44 , wherein the method further comprises:
 arranging said channel section bent and/or angled away from a central axis A of the burner to direct reaction gas from the feed opening towards the inner wall section tapering towards the annular opening between the top structure and the gas deflection member.   
     
     
         47 . The method according to  claim 43 , wherein the method further comprises:
 arranging a plurality of inlet channels of the gas supply device to pass through the top structure in a configuration symmetrical to a central axis A of the burner so that each of said plurality of inlet channels having a channel section inside the reaction gas chamber,   arranging each channel section bent and/or angled away from the central axis A of the burner to direct reaction gas from the feed opening towards the inner wall section tapering towards the annular opening between the top structure and the gas deflection member, and   arranging the feed openings of the inlet channels in a configuration symmetrical to a central axis A of the burner.   
     
     
         48 . The method according to  claim 43 , wherein the method further comprises:
 the gas deflection member that is provided comprises a surrounding structure that is arranged to surround the feeder pipe.   
     
     
         49 . The method according to  claim 48 , wherein the method further comprises:
 providing the surrounding structure of the gas deflection member at the inner wall section tapering towards the annular opening.   
     
     
         50 . The method according to  claim 49 , wherein the method further comprises:
 the surrounding structure of the gas deflection member that is provided comprises an annular disc comprising an inner circumference and an outer circumference.   
     
     
         51 . A burner for feeding solid material and reaction gas into a reaction shaft of a suspension smelting furnace, wherein the burner comprises:
 a feeder pipe for feeding solid material into the reaction shaft of the suspension smelting furnace,   a gas supply device for feeding reaction gas into the reaction shaft of the suspension smelting furnace, wherein the gas supply device comprises a reaction gas chamber, which surrounds the feeder pipe, wherein the gas supply device opens to the reaction shaft of the suspension smelting furnace through an annular opening, wherein the reaction gas chamber being at least partly laterally outwardly limited by an inner wall section tapering towards the annular opening and by a top structure, and wherein the gas supply device comprises at least one inlet channel opening into the reaction gas chamber device for feeding reaction gas into the reaction gas chamber through a feed opening of said at least one inlet channel, and   a gas deflection member in the reaction gas chamber, wherein the gas deflection member limiting at least one through opening leading through the gas deflection member, and wherein   said feed opening of said at least one inlet channel being configured to direct reaction gas towards the inner wall section tapering towards the annular opening and/or configured to direct reaction gas towards the gas deflection member.   
     
     
         52 . The burner according to  claim 51 , wherein
 said at least one inlet channel penetrates into the reaction gas chamber so that said at least one inlet channel has a channel section inside the reaction gas chamber and so that said feed opening of said at least one inlet channel is inside the reaction gas chamber.   
     
     
         53 . The burner according to  claim 52 , wherein
 said at least one inlet channel passes through the top structure of the reaction gas chamber.   
     
     
         54 . The burner according to  claim 52 , wherein
 said channel section is bent and/or angled away from the central axis A of the burner to direct reaction gas from the feed opening towards the inner wall section tapering towards the annular opening between the top structure and the gas deflection member.   
     
     
         55 . The burner according to  claim 51 , further comprising:
 a plurality of inlet channels passing through the top structure in a configuration symmetrical to a central axis A of the burner so that each of said plurality of inlet channels having a channel section inside the reaction gas chamber, wherein   each said channel section being bent and/or angled away from the central axis A of the burner to direct reaction gas from the feed opening towards the inner wall section tapering towards the annular opening between the top structure and the gas deflection member, and   the feed openings of the inlet channels being arranged in a configuration symmetrical to a central axis A of the burner.   
     
     
         56 . The burner according to  claim 51 , wherein
 the gas deflection member comprises a surrounding structure that surrounds the feeder pipe.   
     
     
         57 . The burner according to  claim 56 , wherein
 the surrounding structure of the gas deflection member being at the inner wall section tapering towards the annular opening.   
     
     
         58 . The burner according to  claim 57 , wherein
 The surrounding structure comprises an annular disc comprising an inner circumference and an outer circumference.